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-   -   Protection (https://fileforums.com/showthread.php?t=70875)

sucubus 21-06-2005 10:58
Protection
 
Hi all!

Some Dreamcast games have some protections beyond the usual LBA check.
Do someone knows what these protections are? I mean, for example, Jet Grind Radio (extracted from Rip Database):

00004518 01E4 -> 00E4
0000451E 0ED2 -> 0900
01E0 -> 0900
0222 -> 0900
0000453A 07D3 -> 0900
01E2 -> 0900
2223 -> 0900
00295408 6EB0 -> 5A2E (45166 -> 11866)

What these changes means? Why changing them make the game work? :-)

DrEaMpLaY 05-07-2005 14:43
Quote:
Originally Posted by sucubus
Hi all!

Some Dreamcast games have some protections beyond the usual LBA check.
Do someone knows what these protections are? I mean, for example, Jet Grind Radio (extracted from Rip Database):

00004518 01E4 -> 00E4
0000451E 0ED2 -> 0900
01E0 -> 0900
0222 -> 0900
0000453A 07D3 -> 0900
01E2 -> 0900
2223 -> 0900
00295408 6EB0 -> 5A2E (45166 -> 11866)

What these changes means? Why changing them make the game work? :-)
It might be country protection, PAL protection, RGB fix and others not known for me.


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